A homeowner wants to build a circular patio. if the diameter of the patio is 20 feet, what is its area to the nearest whole number? 1,257 square feet 314 square feet
We are asked to find the area of patio. It is circular so formula used for area is given by: [tex]A= r^{2} \pi [/tex] Where r = radius = diameter / 2 = 20 / 2 = 10 feet
[tex]A = 10^{2} \pi =100 \pi[/tex] When we round this to the nearest whole number: [tex]A =100 \pi = 314.159=314ft^{2}[/tex]
